Roll-to-roll gravure-printed flexible perovskite solar cells using eco-friendly antisolvent bathing with wide processing window

Young Yun Kim; Tae Youl Yang; Riikka Suhonen; Antti Kemppainen; Kyeongil Hwang; Nam Joong Jeon; Jangwon Seo

doi:10.1038/s41467-020-18940-5

Roll-to-roll gravure-printed flexible perovskite solar cells using eco-friendly antisolvent bathing with wide processing window

Young Yun Kim
, Tae Youl Yang
, Riikka Suhonen
, Antti Kemppainen
, Kyeongil Hwang
, Nam Joong Jeon
, Jangwon Seo^*

^*Corresponding author for this work

Korea Research Institute of Chemical Technology
Chungnam National University

Research output: Contribution to journal › Article › Scientific › peer-review

295 Citations (Scopus)

234 Downloads (Pure)

Abstract

Driven by recent improvements in efficiency and stability of perovskite solar cells (PSCs), upscaling of PSCs has come to be regarded as the next step. Specifically, a high-throughput, low-cost roll-to-roll (R2R) processes would be a breakthrough to realize the commercialization of PSCs, with uniform formation of precursor wet film and complete conversion to perovskite phase via R2R-compatible processes necessary to accomplish this goal. Herein, we demonstrate the pilot-scale, fully R2R manufacturing of all the layers except for electrodes in PSCs. Tert-butyl alcohol (tBuOH) is introduced as an eco-friendly antisolvent with a wide processing window. Highly crystalline, uniform formamidinium (FA)-based perovskite formation via tBuOH:EA bathing was confirmed by achieving high power conversion efficiencies (PCEs) of 23.5% for glass-based spin-coated PSCs, and 19.1% for gravure-printed flexible PSCs. As an extended work, R2R gravure-printing and tBuOH:EA bathing resulted in the highest PCE reported for R2R-processed PSCs, 16.7% for PSCs with R2R-processed SnO2/FA-perovskite, and 13.8% for fully R2R-produced PSCs.

Original language	English
Article number	5146
Journal	Nature Communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1038/s41467-020-18940-5
Publication status	Published - 13 Oct 2020
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by a grant from the Korea Research Institute of Chemical Technology (KRICT), Republic of Korea (KK1963-803 as “GO! KRICT project”), the Korea Institute of Energy Technology Evaluation and Planning (KETEP) from the Ministry of Trade, Industry & Energy (20183010014470) and the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) of Korea (NRF-2016M3A6A7945503).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure

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s41467-020-18940-5Final published version, 3.87 MBLicence: CC BY

Cite this

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title = "Roll-to-roll gravure-printed flexible perovskite solar cells using eco-friendly antisolvent bathing with wide processing window",

abstract = "Driven by recent improvements in efficiency and stability of perovskite solar cells (PSCs), upscaling of PSCs has come to be regarded as the next step. Specifically, a high-throughput, low-cost roll-to-roll (R2R) processes would be a breakthrough to realize the commercialization of PSCs, with uniform formation of precursor wet film and complete conversion to perovskite phase via R2R-compatible processes necessary to accomplish this goal. Herein, we demonstrate the pilot-scale, fully R2R manufacturing of all the layers except for electrodes in PSCs. Tert-butyl alcohol (tBuOH) is introduced as an eco-friendly antisolvent with a wide processing window. Highly crystalline, uniform formamidinium (FA)-based perovskite formation via tBuOH:EA bathing was confirmed by achieving high power conversion efficiencies (PCEs) of 23.5\% for glass-based spin-coated PSCs, and 19.1\% for gravure-printed flexible PSCs. As an extended work, R2R gravure-printing and tBuOH:EA bathing resulted in the highest PCE reported for R2R-processed PSCs, 16.7\% for PSCs with R2R-processed SnO2/FA-perovskite, and 13.8\% for fully R2R-produced PSCs.",

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AU - Hwang, Kyeongil

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AU - Seo, Jangwon

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Roll-to-roll gravure-printed flexible perovskite solar cells using eco-friendly antisolvent bathing with wide processing window

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UN SDGs

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